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Marquise|Natural|GIA

1.51ct F SI1 Marquise Natural Diamond

ID • F/SI1 • GIA 2557248303

Certificate GIA 2557248303

Diamond specifications and retailer prices

From $14,150 CAD
$10,126 USD
As of October 31, 2026
Save $4,953 CAD (26%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $19,104 CAD at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557248303. Listed at 4 retailers as of October 31, 2026, with prices from $14,150 to $19,104, a $4,953 spread on the same certified stone. 77 Diamonds lists it at $19,104. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
F
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557248303
Dimensions11.39 × 6.01 × 3.75 mm
L/W Ratio1.90
Top View
11.39 mm6.01 mm1.51 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557248303
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $19,104 CAD|Low: $14,150 CAD|High: $20,304 CAD|Avg: $16,832 CAD|-0.2%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 2$14,150 CAD
Retailer 10$14,435 CAD
Retailer 9$14,975 CAD
Retailer 6$15,824 CAD
Retailer 3$16,443 CAD
Retailer 4$16,864 CAD
Retailer 5$17,405 CAD
Retailer 8$17,475 CAD
Retailer 11$18,058 CAD
77 Diamonds$19,104 CAD
Retailer 7$20,304 CAD

34 data points across 11 retailers

4 retailers$14,150 CAD to $19,104 CAD

B+
Cheapest Retailer
-
$14,150 CAD
$10,126 USD
B+
Retailer 2
-
$14,435 CAD
$10,330 USD
View
B
Retailer 3
-
$15,824 CAD
$11,324 USD
View
Most Expensive
B
77 Diamonds
MQZF6ZUFXRS · Nov 1
$19,104 CAD
£10,764 GBP
View
3 more retailers have this diamond
Prices start from $14,150 CADSave up to $4,953 CAD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.51ct Marquise
$14,150 CAD